Pump



Apr. 24, 1923.

C. A. WAITZ PUMP Filed Jan. 5, 192l INVENTOR Patented Apr. 24, 1923.

CHARLES A. WAI'IZ, F ROUSEVILLE, PENNSYLVANIA.

PUMP.

Application filed January 8, 1921. Serial Ho. 434,475.

To all whom it may concern:

Be it known that I, CHARLES A. WArrz, a citizen of the United States, residing at Rouseville. in the county of Venango and State of Pennsylvania, have invented new and useful Improvements in Pumps, of which the following is a specification.

It is desirable with pumps for .oil wells to keep the working barrel free from sands as they settle from the oils extending upwardly the tubing. It is also desirable to protect the working barrel" against damage either from the dropping of the tubin -or where the tubing is let down too rapidly and receives shock at the bottom of the well. The present invention provides a sand trap and protects the working barrel.

The invention is illustrated in the accompanying drawings as follows Fig. 1 shows a central section of the pump embodying my invention.

Fig. 2 a section on the line 2-2 in Fig. l. 1 marks the working barrel, and 2 the standing valve in the working barrel.

The working barrel is mounted on a pipe or standard 3 which extends upwardly for any distance that may be desired from a fitting 4. A strainer 5 is secured to the fitting 4 and a tubing 7 is connected with o the fitting 4 by a collar 6. The tubing is of larger size than the working barrel and extends upwardly to above the working barrel where it is connected by a coupling 8 with a fitting 9. The tubing l0 is secured to the fitting 9.

The tube 7 is of suflicient size to provide for a space between the working barrel and the tube so that the sand settling from the tubing may pass through this space into the space around the standard 3. This space may be given any capacity desired.-

The pump plunger 11 operates in the working barrel and is of ordinary construction. A sucker rod 12 extends from the plunger through a cap 13 which is mounted on the sucker rod and rests on the top of the working barrel thus preventing the set-- tling of sand directly into the working barrel. This cap is forced-off the top of the working barrel by the up-flow of fluid to permit the discharge of fluid from the working barrel to the tubing.

In order to center the working barrel I provide a spider 14 which is secured to the upper end of the working barrel in any convenient manner asby threading the upper end of the working barrel and screwing it on to the working barrel. The spider has the projections forming the open spaces 15 through which the sand may pass.

The centering of the working barrel assists in'the entry of the pump plunger when it has been removed and it is desired to return it to the working barrel.

What I claim as new is 1. In a pump, the combination of a working barrel; a tube larger than the working barrel within which the working barrel is placed, said tube extending below the workmg barrel and being of a size providin a space between the barrel and the tube; a pipe smaller than'the barrel extending downwardly from the bottom of the barrel and delivering oil to the barrel, the tube protecting the barrel, and the space within the tube below the barrel forming a sand trap for sand settling past the barrel; and means for centering the barrel relatively to the tube.

2. In a pump, the combination of a working barrel; 2. tube larger than the working barrel within which the working barrel is placed, said tube extending below the work ing barrel and bein of a size providing a space between the Earrel and the tube; a pipe smaller than the barrel extending downwardly from the bottom of the barrel and delivering oil to the barrel, the tube protecting the barrel and the space within the tube below the'barrel forming a sand trap for sand settling past the barrel; and a spider arranged on the barrel and engaging the walls of the tube for centering the barrel on the tube.

In testimony whereof I have hereunto set my hand.

CHARLES A. WAITZ. 

